variable.h

st7 单片机模拟I2C软件包 对没有I2C总线的单片机需要I2C功能非常有用

/************************** (c) 2003  STMicroelectronics **********************

PROJECT  : I2C_MST
COMPILERS : COSMIC AND METROWERKS 
MODULE  :  variable.h
REVISION DATE :  12/06/03
AUTHOR : Micro Controller Division Application Team 

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DESCRIPTION : Application Global Variables Definition

              
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MODIFICATIONS : 
  04/09/98  - V1.0  - First Version       
  12/06/03  - V1.1  - 1) Compatibility With Cosmic And Metrowerks.
                      2) Update for st72324        

******************************************************************************/

 
#ifndef VARIABLE_H
#define VARIABLE_H
 

#ifdef __HIWARE__ 


#pragma DATA_SEG SHORT _ZEROPAGE
extern unsigned short int i;
extern unsigned char j;
extern unsigned char I2C_SR1;       
extern unsigned char I2C_SR2;       
extern unsigned char I2C_DR;
extern unsigned char count;
extern unsigned char buff;
extern unsigned char err_status;
extern unsigned char t_count_err;
extern unsigned char r_count_err;
extern unsigned char flag;
extern unsigned char n;

#pragma CONST_SEG DEFAULT
extern unsigned char send_tab[];                  /* n+1                     */

#pragma DATA_SEG DEFAULT
extern unsigned char rec_tab[];                   /* n-1                     */

#endif


#ifdef __CSMC__

extern unsigned   short  i;
extern unsigned   char  n;
extern unsigned   char  j;
extern unsigned   char  I2C_SR1;
extern unsigned   char  I2C_SR2; 
extern unsigned   char  I2C_DR;
extern unsigned   char  count;
extern unsigned   char  buff;
extern unsigned   char  err_status;
extern unsigned   char  t_count_err;
extern unsigned   char  r_count_err;
extern unsigned   char  flag;              
extern unsigned   char rec_tab[];
extern unsigned   char send_tab[];

#endif

#endif

/******************* (c) 2003  STMicroelectronics ************ END OF FILE ***/